Maintenance-Object Repair Procedures
555-233-143
8-1312 Issue 1 May 2002
Battery Holdover (Large Batteries)
The large batteries are mounted inside a separate battery cabinet and can supply
holdover times of 2 to 8 hours depending on the size of the battery. The batteries
are circuit breaker protected and are charged by the J58890CH-1. The batteries
also contain a thermal sensor that change the charging voltage depending on the
battery temperature.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below when inspecting
errors in the system. For example, by clearing error codes associated with the
Battery and Battery Charger Query test (#5), you may also clear errors generated
from other tests in the testing sequence.
Notes:
a. See ‘‘AC-POWER’’ on page 8-4 for a description of this test.
b. See
‘‘CARR-POW (Carrier Power Supply)’’ on page 8-393 for a description of
this test.
c. See EMG-XFER for a description of this test.
d. See ‘‘CABINET (Cabinet Sensors)’’ on page 8-383 for a description of this
test.
e. See EXT-DEV for a description of this test.
f. See ‘‘RING-GEN’’ on page 8-1357 for a description of this test.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND*
Battery and Battery Charger Query test (#5) X X ND
AC Power Query test (#78) (a) X X ND
Power Unit Query test (carrier E) (#127) (b) X X ND
Power Unit Query test (carrier D) (#127) (b) X X ND
Power Unit Query test (carrier A) (#127) (b) X X ND
Power Unit Query test (carrier B) (#127) (b) X X ND
Power Unit Query test (carrier C) (#127) (b) X X ND
Emergency Transfer Query test (#124) (c) X X ND
Cabinet Sensors Query test (#122) (d) X X ND
External Alarm Lead Query test (#120) (e) X X ND
Analog Ring Generator Initialization test (#117) (f) X X ND
Analog Ring Generator Query test (#118) (f) X X ND
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